Motor construction



Sept. 12, 1933. R. E. DEEBLE MOTOR CONSTRUCTION Filed Oct. 22, 1950 3 Sheets-Sheet l Sept. 12, 1933. R. E. DE'EBLE 1,926,371

MOTOR CONSTRUCTION Filed Oct. 22,1950 3 Sheets-Sheet 2 Sept. 12, 1933.

I R. E. DEEBLE MOTOR CONSTRUCT I ON Filed Oct. 22, 1950 3 Sheets-Sheet 3 Patented Sept. 12, 1933 i r UNITED STATES PATENT OFFICE MOTOR CONSTRUCTION I Roy E. Deeble, Long Beach, Calif Application October 22, 1930. Serial No. 490,432 14 Claims. (Cl. 12363) 3 I This invention relates to engine or motor coninthe art from the following detailed descripstruction in which by a novel combination and tion of a preferred form of the invention,.refer arrangement of elements a desirable lightweight ence' being had to ,the appended drawings in motor is produced. I which, for illustrative purposes,a double acting 5. In general the present invention relates to four stroke cycle internalcombustion engine is improvements in construction inlrecipgrocating shown. It is to be understood, however, that engines in which amovable piston provided. with the invention is not. limited to this adaptation I a skirt and with a longitudinal opening'in the and use. on four stroke double acting internal skirt is employed. More particularly it maybe combustion engines but maybe applied to other 7 10 said that the present invention relates to imforms of reciprocatingengines and to their uses. provements on internal combustion engines of, In the drawings i j the character'disclosed in Patent No. 1,832,282, Fig. .l is a longitudinal section through one issued November 17th, 1931. cylinder of areciprocating engine embodying The motors coming within the scope of this the construction of this invention. I i l5 invention include generally a cylinder contain- Fig. 2 is a vertical section through the cylinder 7O inga movable piston with expansion chambers shown in Fig. 1, said section being taken through. on both sides of the piston head so that in effect the plane 2-2 indicated in ,Fig. l. p, two expansion chambers are formed in each Fig. 3 is an end ,view of the cylnder shown in cylinder. Fig.1. I a 20 By placing a valve assembly in operative com- Fig. 4 is a tranverse section taken alongthe munication withthe space between a stationary pl'an'e, 4--4 in.-.Fi'g. 2. p r C j bulkhead positioned in the skirt of the piston The double acting engine shown inthe drawand the head of the piston'and anothervalve ings is of atype'which i's particularly adapted assembly in operative communication with the for use in automobiles, airplanes,fmotorboats 25 head of the cylinder, the motorjmay be used as and the like. V

adouble acting internal combustion or recipro It is to be understood that the construction eating engine. 1 shown in the drawings is not only applicable to Motors including a cylinder, a piston and a internal combustion lenginesof, the type specifistationary bulkhead within the cylinder and cally described but may also be employed in the ac piston skirt are rather diificultly assembled. construction" and assembly '-.of various other The present invention is primarily directed to, types ofreciprocating engines,'such as,'for' exa mode of construction by means of which it is ample, Diesel engines, compressors, pumps. and possible. to assemble the motor readily without various other types of reciprocating enginesthe useor" complicated joints. Theengine' may comprise one or more cylin- 35 An object of the invention is to disclose'and ders, each of said cylinders being preferably provide a reciprocating engine of the double made of sections such as the sections 1 and 2, acting p Which of ple g w g co suitably connectedto eachother as shown. The struction. H sections 1 and 2 come into abutting relation as Another object of the invention is to disclose indicatedat 3a'nd a valve assembly ring 4 fits 4 and p ovide a reciprocatin engine including a between the main portions of .thefs'ections 1 and 9 cylinder, piston and a stationary bulkhead with 2, thdvalve assembly ring 4 including a valve i the p s n skirt. the st u ti n b ing such chamber indicated. at 5 containing inlet and r a o p mi ready m y di m nt ng f r outlet valve ports 6 andsuitablevalves '7. The

repairs. 1* cylinder sections 1, and 2. aswell as the-valve 45 A still further object is to disclose and proring- 4 are held together as by meansof bolts vide an internal combustion engine of the double 3 disp sed with their axes substantially" paract yp which is light in Weight and S p alleling .the axes of the cylinder sections.

in construction. l 7 .One of.rthei cylinder;sections;,as for example A still further object is to disclose a d provide the uppercylinder section 1', may befprovided' 5 areciprocating engine including acyl-inder and with a head 9, the cylinder section 1 being in piston skirt, the head of the piston being on one operative communication with a valve, assembly side of the bulkhead whereas the wrist pin which, 'as shown'in'Fig. l,'is madea part of the assembly is on the other side of the bulkhead. head 9. The head 9.may be connected to. the

Other objects, uses and advantages of this cylinder section 1 as by means of machine invention will become apparent to those skilled screws 10. Between the variousjoints, as l e-.

tween the cylinder section 1 and the head 9, or

. between the cylinder section 1 and the valve ring 4, suitable gaskets indicated at 11 may be employed.

3 The cylinders, valve rings and valveva ssemi blies, shown in the drawings, are ribbed to prothreaded to receive a plug 14 having a central internally threaded bore indicated -at wl5 to re ceive a spark plug; The plug 14; may also be provided with ribs such as arei-ndicatedat'16 to facilitate cooling.

Slidably mounted within the cylinder composed of sections 1 and 23 example,

ton provided with aheadl'l and a skirt l3 ihaving a longitudinal s'lot therein, one-edge er which is indicated at 119; The piston fmay carry suitable bearings 'for ia wrist pin 7 ,Theyheadl'l of the piston may 'bejhollow andfrlled withlasuitable heat absorbing medium, he such as 'fluxing heat absorbing means; sodiunr and lithium ntrate has been foundeffective for this purpose.

As shown, the pistons'kirt 1811185 carryat its lower .end wrist pin :bosses 20. "The longitudinal' slotin thepiston skirt '18 preferably extends from a point closely adjoining'thehead 1'7 to a point adjacent the open end of the piston skirt so as to leave a'solid' circular ring or piston skirt at the open end'of the skirt'and thus give strength to the piston as, a wholeQ Positionedw-ithin the cylinder andwithinthe piston skirt 18 there is astationary substantially transverse bulkhead generally indicated -at'f2l. Said bulkhead is preferably composed of sub- "stantially circular sections adapted to, beins'erted into the skirt 18 through the longitudinal 'faperture 1'9. For example' the'bulkhead 21 may consist of a member '22" of, slightly "smaller diameter than the internal diameter of j the a piston skirt 18. It is to be noted that the uppersur- "faced the member 22 is slightly convex and that thello'wer edges of the member -22 are in the ff-orm of steps, thus providing a .circularrecess 23 and a deeper lQCBSS'fZ'Q adjoining the lower surface of the member ,Qne or more of the recesses 23 may be .usedcand .two' are shown in the member 22. These recesses 23 are adapted -to receive externally expanding rings v25. The bulkhead also includes a lower member 26 provided ,With aiecess. 27oompleme'ntary to the recess'j24 formed in themeniber 22 and i an adjoining recess 28 for "another externally expending sealing ring similar .to'therings 25.

Eachof the members 22 and 26 together with their sealingrings may thus be separatelyfini serted into the piston l8 ,throughlth'e longitudinal aperture '19 andtheri' by turning the members 22 andZdtheymay becaused to as- .surne a position substantially transverse to the longitudinal axis of the cylinder and of the p 'fl ki tjlfi- A key ring Miits into the Complementaryre- "gcessesf 24 and '27 ,"a'ssures proper Contact between the; members 22 and :26jandjas the line of con}: tactbetween members 22 and 26 is approxie mately midway of the keyring 14, a gas-tight jointisfassuredr i;

"22jand2fi is thenznaintained in positionwithin "the piston'andwithin the cylinder by "means of machine screws 35 extending through, the ears 33 formed in the lip 32 into the lugs 3a. In this manner, the members 30 and 31 are firmly attached to-the lower end of the cylinder.

The bulkhead members 22 and 26 are also preferably provided with lugs 35. The upper ends of the members 30 and 31 are provided with similar ears 3'? and the members 22 and 26 may be connected to the members 30 and Bl as by means of machine screws 38 eX-.

tending into internally-"threaded bores formed in: the lugs3 6.

"The member 30 maybe provided with, aniex ternally extendingjportion 40 adapted tocontact with. the inte'rior wall of the" cylinder iw through the longitudinalaperture 19 formed in the pistonskirt '13. 'A'machine screw 41 may extend through the wall of the cylinder into the portion 4.0 and bymeans of suchmac'hine screw 4-, the upper ends oithe members 3Gand 31 .as well as the bulkhead "Zi -may thus be held in position against lateral.movement.

A certain amount of space is left between the innerfsurface of the cylinder; the outer surface of the stt. ionary, bulkhead 2l'andthe edges of "the lcngitudinalportle ofthe skirt .18. Means have been' prov'idedf forpreventingleakage of gases from this opening and such means may comprise a mental expansible shoe carried .by thefstationary bulkhead 21. -Such"an expansible shoe is indicated at 42 but. need not be [described in detail .here as it is described in detail mine befcre'nentioned co-pending application; Tlie lzey ring 44 is of channel section and is adapted to receive afin of said 'expansible shoe and'thiis prevent vertical motion of the shoe 42. VAn expanding ring 39 is also carried by the key ring 44, said ring 39 being connected .to slidabk portions of the shoe, 42 to 'main'tain'the same in contact withthe longitudinal edges of the port 19. e

' Theiwalls'of the cylinder opposite the stationary bulkhead 21 may be: providedwith a plu rality annular grooves such the grooves 3, ;eaeh ;cf said grooves provided with an internally contracting sealingv ring. The skirt of the piston 18 is thus held firmly between the externally expanding rings 25 ,earried by the bulkhead2l and the contracting rings 43 carried by the cylinder wall; l

- It will hus beseen that means have beenproy-idedwherebya stationary bulkhead may be positioned within the piston skirt ithout the necessity of either I removing the head of izthe piston or the wristpin assembly; In assembling -the" -motor, the bulkhead members 22 and'26 and The'piston, together with its bulkhead its fastened into position by connecting-the members 30 and 31 to :the lugs33 of the cyl'inderi2 by means of the mach-inescrewslifi.

Before legs 30 and '31 are firmly connected to.

thec'ylinder section 2 by the screws 35jthe piston is partially revolved upon its ownax'is Within the cylinder section-W se as to align the bosses 20 with apertures 50 made 'the lower portion oi the cylinder section 2.- a V ll/'rist pins can then be inserted through the apertures 50 into the bosses 20' and connecting rod thus attached to the piston while "the pi-s+ ton is in the cylinder section 2. After the wrist pins have beeninserted, the piston is again partially rotated into normal position so that the cylinder walls prevent the wrist pin from coming 'out.

In'effect, therefore, the 'pis-ton-is over one half and approximately two-thirds the length-of the entire cylinder, the head of the piston 'being adapted to move between the upper andv lower valve assemblies which em in operative sections or to a cylinder provided with a removable head such as the head 9. Instead it is quite evident that the invention may also be applied to cylinders provided with a removable head only. Furthermore, although the stationary bulkhead shown in the drawings is formed of two sections '22 and 26 and a key ring 44, it is to be understood that bulkheads m'ay be made of one or more "sections. Furthermore, although the piston head 17 is shown-hollow, the invention is not limited thereto; Although the construction shown illustrates'an air cooled type of motor, in is obviousfthat similar- 0cm structions may-be', applied to liquid cooled motor. y M

The advantages of' the construct-ionwill besome obvious to'those skilled in the art froma contemplationof the prefer-red form described hereinabove. Furthermore, numerous changes and modifications will become apparent to those skilled in the art and 'theinvention embraces all sueh changes and modifications as come within the scope of the appended claims," the specific form of theinvention described" being merely illustrative of the construction.

ing therein and wrist pin bearings' carried by said skirt a stationary bulkhead positioned within cylinder and piston skirtandbe tween thehead andwrist pin bearings thereof, said bulkhead comprising substantially. circular members insertable-into said skirt throughsaid longitudinal opening therein andinovable into transverse position within the skirt, and means in'said cylinder in spaced relation to cylinder walls connecting said bulkhead withthe open end of said cylinder. 1 i

2. In a reciprocating engine including 'a cylinder provided with an open end, a movable-piston within said cylinder, saidipiston'including a skirt, a longitudinal opening in said skirtand Wrist pin bearings carried by said skirt; astationary bulkhead positioned-within said cylindersaid"-.sk=irt through said longitudinal opening I therein and inovabie intotransverse position Within the skirt; means in" said'i cylinder in spaced relation to cylinder walls connecting said bulkhead with the-open end of saidcylinder,

means for positioning-said bulkhead laterally in said" skirt and said I cylinder. I

5 3; 'In a reciprocating eng'ine the combination of a cylinder provided with ahead'and an open end, a movable: piston within said cylinder, said piston i nclud-ing' a head, askirt, :a longitudinal opening-in said skirt, and wrist pin bearings car- "ried by saidskirt', a stationary bulkhead positioned within said cylinder and piston skirt and between-the head and' wrist pin bearings thereof, said bulkhead com-prisingsubstantially circular members insertable into-said skirt through said longitudinal "opening therein 7 and, movable into transverseposition within theski-rt, means in said cylinder in spaced relation to cylinder walls connecting" said bulk-head with the open end ofv said cylinder, expansion sealing rings carried by said bulkhead, and "contraotionysealing rings carriedbysaid cylinder *in a transverse plane passing through said bulkheadl I 4. In a reciprocating engine the combination of acylinder provided with a heada-nd an open end, a movable piston said cylinder, said piston ineludi-ng a head, a skirt, a longitudinal opening-in said skirt, and wrist pin bearings carried by said skirt, a stationary bulkhead posi tioned'within said cylinder :andpiston skirt and between the heada'nd Wrist-pin bearings thereof, said bulkhead comprising substantially circular members insertable into said skirt through said longitudinal opening therein and movable into f lby said cylinder in a "transverse plane passing through said bulkhead, and means for positioning said bulk-head laterally in said s'kirtand cylinder.

"5. a reciprocating engine the combination t of a cylinder 'providedwith a headan-dan ope.

-end',:'a movable piston within'said cylinder, said piston including a he'aLHa skir t,la longitudinal opening in said skirt; and'avrist pi-n bearings carried by'said skirt, a stationary bulkheadposi- *tion'ed within said cylinder-and piston skirt and between the head and Wrist pin bearings thereof,

said bulkheadcomprising substantially lcircular 7 members insertable into said'sk irt' through said V longitudinal opening therein and movable into its".

said bulkhead and fitting into the longitudinal opening in said".piston skirt, expansion sealing rings carried by said bulkhead, and contraction of a cylinder composed of two longitudinal secingprovided witha head at one endthe other end findingopen, a movable p'iston within said 'cylinderj'sa'id piston including a head, a skirt, a wrist pin assembly carried by said skirt anda seahngrings carried' by said cylinder in a transverse opening passing through said bulkhead.-- '6; In a reciprocating engine *the combination ,tions connected to -each other, said cylinder :be-

longitudinal opening in said skirt,'a stationary bulkhead positioned within said cylinder and piston skirt and between the head and wrist pin bearings of saidskirt, said bulkhead comprising substantially circular .members .insertable into said skirt through said longitudinalopening thereiny-means in-said cylinder in spacedrelation. to cylinder-walls connecting said bulkhead with the open end'of said cylinder to maintain said bulkhead in transverse position substan tially at the point of connection of said cylinden sections, a valveassembly in operative communication with the head of said cylinder, and a second valve assembly in operative communication through said skirt opening with the space between the piston head and stationary bulkhead. '7. In a reciprocating engine'the combination of a cylinder composed of two longitudinal sections connected to each other, said cylinder being provided with a head at one end, the other end being open, a movable piston within said cylinder, said piston including ahead, a skirt, a wrist pin assembly carried bysaid skirt'anda longitudinal opening in said skirt, a stationary bulkhead positioned within saidcylinder and'piston skirt betweenthe headand wrist pin bearings of said skirt, saidbulkhead comprising substan-- tially circular members, insertable 'into said skirt through said longitudinal opening therein, means in said cylinder in spaced relation to cylinder walls connecting said bulkhead, with the open end of saidcylinder to maintain said bulkhead intransverse position substantially at the point of connection of said cylinder sections, a valve assembly in operative communication with the head of said cylinder, a second valve assembly in operative communication through said skirt opening with the space between the piston head and stationary bulkhead, expansion sealing rings carried by said bulkhead, contraction sealing rings carried by said cylinder in a transverse plane passing through said bulkhead,

and an expansible shoe carriedby said bulkhead: and fitting into the longitudinal opening in said movable piston. a

8. In a reciprocating'engine the combination of two cylinder sections, each of said sections being provided with an annularly stepped end, a valve assembly ring adapted to receive said stepped ends of said cylinder sections, means 'for connecting said cylinder sections and valve assembly ring together, ahead carried by one end of the cylinder thus formed, a valve'assem'- bly in operative communication with the, head of said cylinder, the opposite end of said cylinder being open, a movable piston within said cylinder, said piston including a ,head, a skirt,

1 wrist pin bearings carried by said skirt and a longitudinal opening-in said skirt, astationary bulkhead positioned ,withinsaid cylinder and piston skirt and between the head, and wrist pin bearings of said skirt, said bulkhead comprising substantially circular members insertable into said skirt through said longitudinal opening therein, and means inssaidcylinder in spaced relation to cylinder walls connecting saidbulkhead with the open end of said cylinder to maintain said bulkhead in transverse position within said skirt. p i x w :9. In a reciprocating engine the combination of two cylinder sections, each .of saidsections' being provided with an annularly stepped end, a valve assembly ring adapted. to receive said stepped ends of said cylinder sections, means for connecting said cylinder sections and valve assembly' ringtogethen; a head carried by one end of the cylinder thus formed, a valve assembly in operative communication with the head of said, cylinder, the opposite end of said cylinder being .open, a movable piston within said cylinder, said piston including ahead, a skirt, wrist pin-bearings carried-1 by said skirt and a longitudinal opening in said skirt,a stationary bulkhead positioned within said cylinder and piston skirt and between the head and wrist pin bearings of said skirt, 'said bulkhead comprising substantially circular members insertable into said skirt through said longitudinal opening therein, means in said cylinder in spaced relation to cylinder vvallsconnecting said bulkhead with the open end of said cylinder to maintain said bulkhead in transverse position within said skirt, and

means for positioning said bulkhead laterally in .said skirt and cylinder.

10 :In a reciprocating engine the combination of two cylinder sections, each of said sections be- ,ing provided with an annularly stepped end, a

valve assembly ring adapted to receive said stepped ends of said cylinder-sections, means for connecting said cylinder sections and valve assembly ring together, a headcarried by one end'of the'cylinderthus formed, a valve assembly in operative communication with the head of'said cylinder, the opposite end of said cyl- 1 inder being open, a movablepiston within said cylinder, said piston including a head, a skirt,

wrist pin bearings carried'by said skirt and a longitudinal opening in said skirt, a stationary bulkhead positioned within said cylinder and 1 piston skirt and 'between the head and wrist pin bearings of said skirt, said bulkhead comprising substantially circular members insertable into-said skirt through said' longitudinal opening therein, means in said cylinder in spaced re- 1 lation-to cylinder walls connecting said bulkhead with the openend of saidcylinder to maintain said bulkhead in'transverse position within said skirt, expansion sealing ringsv carried by said bulkhead, contraction rings carried by said cyl- 1 inder inatransverse plane passing-through said bulkhead, and an expansible shoe mounted on said bulkhead and fitting'jinto the longitudinal opening in said movable piston.

11. In a reciprocating engine the combination 1 of, two cylinder sectionseach provided with a stepped end,- a valve assembly ring adapted toreceive the stepped ends of said cylinder sections, means for connecting said valve assembly and cylinder sections together, a port in the 1 cylinder thus formed in operative communication with'the valve assembly carried. by said ring, a head carried by one end of the cylinder,

a Valve assembly in operative communication 1 with the head of said cylinder, the opposite end of said cylinder being open, a movable piston within said cylinder, said piston including ahead, a skirt, a wrist pin assembly carriedby said skirt and a" longitudinal opening in said 1 skirt, the head oi said piston being adapted to the open end of said cylinder, and means for positioning said bulkhead laterally in said skirt and cylinder.

12. In a reciprocating engine the combination of two cylinder sections each provided with a stepped end, a valve assembly ring adapted to receive the stepped ends of said cylinder sections, means for connecting said valve assembly and cylinder sections together, a port in the cylinder thus formed in operative communication with the valve assembly carried by said ring, a head carried by one end of the cylinder, a valve assembly in operative communication with the head of said cylinder, the opposite end of said cylinder being open, a movable piston withinsaid cylinder, said piston including a head, a

skirt, a writ pin assembly carried by said skirt and a longitudinal opening in said skirt, the head of said piston being adapted to move between the head of said cylinder and said valve assembly ring, a stationary bulkhead positioned within said cylinder and piston skirt and bebulkhead, an expansible shoe packing carried by said bulkhead and fitting into the longitudiinder and piston skirt and between the head and wrist pin bearings thereof, said bulkhead comprising substantially circular membersinsertable into said skirt through said longitudinal opening therein and movable into transverse position within the skirt, and means in said cylinder in spaced relation to cylinder walls connecting'said bulkhead with the open endv of said,

cylinder. V

14. In a reciprocating engine including a piston provided with a longitudinal slot. in the skirt thereof, the provision of a plurality of substantially circular members provided with complementary faces, said members being insertable into said skirt through said longitudinal opening and movable into transverse position within the skirt, and means for holding said members in transverse position with complementary faces together. 1 I

' ROY E. DEEBLE. 

